Google Antigravity Unauthenticated RCE: Detection and Remediation for Active Exploitation

Introduction

Security researchers and threat intelligence analysts have identified a critical unauthenticated remote code execution (RCE) vulnerability affecting the "Google Antigravity" software utility. More alarmingly, cybercriminals are actively exploiting this flaw in the wild, leveraging the tool's reputation to deliver malicious payloads to unsuspecting victims.

As defenders, we must move beyond awareness and immediately assume breach. The exploitation of unauthenticated RCE flaws provides attackers with a straightforward path to initial access and execution. Given that adversaries are abusing the trusted nature of this software, standard trust-based controls may fail. This post provides the technical breakdown, detection logic, and remediation steps necessary to contain this threat.

Technical Analysis

Affected Products & Versions:

• Product: Google Antigravity (all recent versions prior to the latest patch are suspected vulnerable).
• Platform: Windows, Linux (check specific vendor advisory for platform exclusivity, but treat as cross-platform risk until confirmed).

Vulnerability Details:

• Vulnerability Type: Unauthenticated Remote Code Execution (RCE).
• Attack Vector: Network Adjacent or Remote (exploitable without user interaction or credentials).
• Impact: Attackers can execute arbitrary commands with the privileges of the running service (often SYSTEM or root) and use that foothold to download and install secondary malware.

Attack Chain (Defender Perspective):

1. Scanning & Identification: Attackers scan for instances of Google Antigravity exposed to the network (default ports or specific identifiers).
2. Exploitation: The vulnerability is triggered by sending a specially crafted packet or request. No authentication is required.
3. Payload Execution: The vulnerability injects a shell command (e.g., cmd.exe, bash, or PowerShell) to fetch a second-stage payload.
4. Malware Delivery: Using the reputation of the "Google Antigravity" process, the malware is downloaded and executed, often establishing persistence or C2 connectivity.

Exploitation Status:

• Status: Confirmed Active Exploitation (In-the-Wild).
• Actor Profile: Cybercriminals utilizing the software's reputation for social engineering or technical trust.

Detection & Response

Sigma Rules

The following Sigma rules focus on the behavioral anomalies associated with this vulnerability: a trusted process spawning a shell (the exploit trigger) and subsequent network connections to untrusted endpoints.

---
title: Google Antigravity Exploit - Unexpected Child Process
id: 8a2b1c3d-4e5f-6789-0123-456789abcdef
status: experimental
description: Detects exploitation attempts of Google Antigravity via unexpected shell processes spawned by the parent application.
references:
  - https://www.securityweek.com/google-antigravity-in-crosshairs-of-security-researchers-cybercriminals/
author: Security Arsenal
date: 2025/04/09
tags:
  - attack.execution
  - attack.t1059
  - cve.2025.pending
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    ParentImage|contains: 'antigravity'
    Image|endswith:
      - '\cmd.exe'
      - '\powershell.exe'
      - '\pwsh.exe'
  condition: selection
falsepositives:
  - Legitimate administrative debugging (rare for this utility)
level: high
---
title: Google Antigravity - Suspicious Network Connection
id: 9b3c2d4e-5f60-7890-1234-567890abcdef
status: experimental
description: Detects Google Antigravity establishing outbound connections to non-standard ports, indicating potential C2 or payload download.
references:
  - https://www.securityweek.com/google-antigravity-in-crosshairs-of-security-researchers-cybercriminals/
author: Security Arsenal
date: 2025/04/09
tags:
  - attack.command_and_control
  - attack.t1071
logsource:
  category: network_connection
  product: windows
detection:
  selection:
    Image|contains: 'antigravity'
    DestinationPort|notin:
      - 80
      - 443
      - 8080
  condition: selection
falsepositives:
  - Legitimate updates if the utility uses custom update ports
level: medium

KQL (Microsoft Sentinel / Defender)

This query hunts for the parent-child process relationship indicative of the code execution vulnerability being triggered.

// Hunt for Google Antigravity spawning shells
DeviceProcessEvents
| where Timestamp > ago(7d)
| where InitiatingProcessFileName contains "antigravity"
| where FileName in~ ("cmd.exe", "powershell.exe", "pwsh.exe", "bash")
| project Timestamp, DeviceName, AccountName, InitiatingProcessCommandLine, ProcessCommandLine, FileName, FolderPath
| order by Timestamp desc

Velociraptor VQL

Use this artifact to hunt for instances of the process and inspect their command lines and child processes on endpoints.

-- Hunt for Google Antigravity processes and their children
SELECT 
  Pid, 
  Name, 
  CommandLine, 
  Exe, 
  Username, 
  CreateTime,
  Parent.Pid as ParentPid,
  Parent.Name as ParentName
FROM pslist()
WHERE Name =~ "antigravity"
   OR Parent.Name =~ "antigravity"

Remediation Script (PowerShell)

Run this script to identify running instances of the vulnerable software and prepare them for patching. Note: This script checks for the process presence; patching requires the official vendor update.

# Check for Google Antigravity Process State
$processName = "antigravity"
$runningProcesses = Get-Process -Name $processName -ErrorAction SilentlyContinue

if ($runningProcesses) {
    Write-Host "[ALERT] Google Antigravity process detected running. It is potentially vulnerable." -ForegroundColor Red
    foreach ($proc in $runningProcesses) {
        Write-Host "PID: $($proc.Id) | Path: $($proc.Path) | StartTime: $($proc.StartTime)"
        # Recommendation to stop the service if not immediately patchable
        # Stop-Process -Id $proc.Id -Force -WhatIf
    }
    Write-Host "Action Required: Apply the latest security patch from the vendor immediately."
} else {
    Write-Host "[INFO] No Google Antigravity processes currently running." -ForegroundColor Green
}

Remediation

1. Patch Immediately: Apply the latest security update provided by the vendor for Google Antigravity. Discontinue use of older versions immediately.
2. Network Segmentation: If the software requires network exposure, restrict access to strictly necessary IP ranges via firewall rules. Unauthenticated RCEs are most dangerous when exposed to the broad internet.
3. Review Logs: Conduct a retroactive hunt (using the KQL above) for the last 30 days to identify any prior exploitation attempts or malicious process spawning.
4. Vendor Advisory: Refer to the official security advisory linked in the source article for specific version numbers and CVE identifiers (if assigned).
5. Identity Verification: Educate users that cybercriminals are leveraging the reputation of this tool. Ensure software is only downloaded from official vendor channels.

Related Resources

Security Arsenal Penetration Testing Services AlertMonitor Platform Book a SOC Assessment vulnerability-management Intel Hub